Speaker



FIG. 1 is a rear perspective view of a speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front perspective view in alternative position thereof; and,

FIG. 9 is a rear perspective view in alternative position. 

The ornamental design for a speaker, as shown and described. 